I'm always looking to add to my collection of 3D blu-rays and 4K steelbooks. I do a lot of traveling and frequent used DVD & game stores, picking up material for trading purposes. While I can sell titles, I would prefer to trade for titles I need; that saves everyone cash.
I'm a bit of an OCD completist when it comes to 3D blu-rays, collecting versions with different packaging (steelbook vs. lenticular slipcover vs. foil slipcover, etc.), releases from different countries, and retailer exclusives.